code: def __init__(self):
      self.children = defaultdict(TreeNode)
      self.live_child_count = None
      self.n = None
  
file_path: catboost/contrib/python/hypothesis/py2/hypothesis/internal/conjecture/choicetree.py
imports: from __future__ import absolute_import, division, print_function
  from collections import defaultdict
  from hypothesis.internal.compat import hrange
label_desc: Use image node_id 1 to create a new TreeNode object from inherited base classes: object with example: obj = TreeNode()